.nav_menu{
    width: 100px;
    .nav{
        height: 100vh;
        background: #031333;
        color: #fff;
        text-align: center;
        box-sizing: border-box;
        .item{
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 90px;
            cursor: pointer;
            .icon{
                font-size: 30px;
            }
            &:hover{
                background: rgba(14,94,251,.4);
            }
        }
        .active_nav{
            background: #0E5EFB;
        }
    }
}